What the maker puts in writing
- “With advanced Bluetooth 5.4 technology, these wireless tv headphones deliver perfectly synced audio with latency under 40 ms”
- “The signal reaches up to 30 meters (98 ft) (100 feet)”
- “Up to 40 hours of playtime” with a transmitter that “doubles as a charging dock”
- “Includes optical, RCA, and AUX cables”, or “pair directly via Bluetooth”
- “Protein leather earpads with memory foam”
- Reference: KS-TV-966H2-CD-HJ-0710
The same product as the other fifty-three dollar Earbay
Two listings, one price, one model.
The references share the base: KS-TV-966H2-CD-HJ-0710 here, KS-TV966CD-HJ-0916 there. And every figure matches — Bluetooth 5.4, under 40 ms, 30 m (98 ft) / 100 ft, 40 hours, charging dock transmitter, protein leather with memory foam, three cables supplied.
The five bullets are the same five, reordered and reworded.
One difference is worth having. The other listing’s title claims “45H Play Time” while its own bullet says “up to 40 hours” — five hours apart on one product, with no condition distinguishing them.
This listing makes no such claim. That is the reason to take this one: not because the hardware differs, but because the document does not contradict itself.
Three cables, which is the practical argument
Optical, RCA and AUX in one box.
Televisions have changed what they offer. Older sets have a headphone jack and RCA; newer ones have optical and HDMI ARC, often with neither analog option left.
The consequence is written into the most expensive Sony on this shelf. The RF400 at $138 states in its own description: “designed for older televisions with Stereo Audio connectors or a headphone jack: newer televisions with HDMI or Digital Optical should instead use headphone model WH-L600.”
Three cables mean not having to work out which era your set belongs to.
What is missing from the list is HDMI ARC — and only the Avantree at $159.99 has it on this shelf.
Under forty milliseconds, and the reason it is a threshold
Forty milliseconds is roughly where the eye catches that a voice does not match a mouth.
Standard Bluetooth is nowhere near. An ordinary A2DP link on the SBC codec typically runs 150 to 250 ms — unwatchable on a face talking to camera.
Five listings here publish the threshold: the three Earbay, the 1Mii at $89.99, the Holdsound at $79.39.
Seven publish nothing — the three Sonys, the three Sennheisers, the Avantree. And the three Sonys are the ones with the least latency of anything here: an analog RF link has no buffer to fill.
A transmitter that is also the dock
The transmitter doubles as a charging dock.
That matters more than the forty-hour figure. One object sits by the television: it takes the audio cable, it holds the headphones, and it charges them whenever they are not on a head.
In practice the battery never runs down, because the resting place is the charger. The Holdsound, the 1Mii and both other Earbay listings use the same arrangement.
By contrast the Sennheiser RS 120-W at $159.95 charges two rechargeable AAA cells in its transmitter — the only product here whose battery can be replaced when it finally dies.
What is not published
No weight. The maker’s own $59.99 listing publishes 255 g; this one and its twin publish nothing. On headphones worn through a film, weight is the comfort figure — Holdsound 250 g, Sony 277 g, Sennheiser RS 175,310 g, RS 195,454 g.
No driver size, where the Sony RF400 publishes 1.57 inch units.
No frequency response and no signal-to-noise figure. Only the Sennheiser RS 195 at $264.03 publishes a measurement on this entire shelf: “Analog input: typ. 85 dBA at 1 Vrms, Digital input: > 90 dBA”.
No sound modes, which the maker claims on its own $59.99 listing.
And the battery is sealed, as on ten of the twelve products here.
Availability
At the check, the American Amazon store stood at roughly $53.
These numbers are what Keepa carried on the day this page was last built. Stock and prices move without notice.
Prices quoted in this text were read on 4 October 2026. The live price is at the top of the page.
